Ventilator.



I. POMERANTZ.

VENTILATOR APPLICATION FILED JULY 8, 1912. 1, 1 1 6,625. Patented Nov. 10, 1914.

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ATTORNEY I. POMERANTZ.

VENTILATOR.

APPLICATION FILED JULY 8, 1912.

Patented Nov. 10, 1914.

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UNITED 's'rnrrss PATENT ormos.

ISIDOR POMERANTZ, OF KANSAS CITY, MISSOURI, ASSIGrNOR T0 PI-IILIP S DELANY,

OF KANSAS CITY, MISSOURI.

VENTILA'IOR.

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Specification of Letters Patent.

Application filed July 8, 1912. Serial No. 708,186.

.and useful Improvements in Ventilators;

and I do declare the following to be a full, clear, and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

lt Iy invention relatesto window ventila tors, and has for its principal object to provide a ventilator which may be located entirely within a window sash, and is adapted for quick removal and return to the. sash to facilitate cleaning.

It is also an object of the invention to provide a ventilator having means for screening or filtering the incoming air, and

"means for adjusting the ventilating area of the device.

In accomplishing these and other objects of the invention, I have provided the improved details of structure hereinafter de- "scribed and illustrated in the accompanying drawings, wherein:-

Figure I 1s a perspective view of a window sash equipped with a ventllator constructed according to my invention, Fig.

II is an enlarged perspective view of end sections and a central part of the ventilator, showing one of the end sections located within the sash. Fig. III is a perspective view of apart of the outside screen and box, showing the connecting or latch 'rnemhers. Fig. IV is an enlarged perspective view of the inside box, showing the damper frame swung back on its hinge. Fig. I7 is a cross section of the box. Fig. VI is a detail perspective of the outside box. Fig. VII

'is a detail perspective of the inside iOOlL Fig. VIII is a detail perspective of the preferred form of inside screen plate. Fig. IX is a perspective view of a modified form 0 inside plate.

Referring more in detail to the parts :-l.. designates the outside bon of the ventilator, which is constructed of sheet metal, and has a curved bottom 2 for draining outwardly downwardly to form a dust stop 1.

over-the outer face of tho sash to which the,

ventilator is applied, the box I being of proper dimensions to fit within an opening made therefor in a window sash and coinprislng a keeper-plate 3 which is adapted to bear agalnst the outer face of a sash, around the opening, to retain the box in place.

Patented Nov. 10, 1914.

The'keeper-plate 3 may be provided with I apertures 4, through which screws may be projected to permanently fix the flange to the window sash, and preferably covers about onehalf of the upper portion of the box to leave a lower opening 5 for the intake of air, a rib 6 connecting the upper and lower portions of the keeper-plate to strengthen same at about its central point, and the lower portion 2 of the box being extended over the lower rail of the keeper-plate so that water willdrain outside ofthe outer face of the sash.

In the outside boat is a longitudinal opening 7, which may be of any desired width,

but preferably extends throughout the upper half of the box, so that air entering through the outer keeper-plate must travel a tortuous path as it enters the ventilator, the

material at the lower edge of the opening:

being preferably turned outwardly and The opening I is broken b a central rib 8, having a key slot 9, wit the curved enlargements 10 at its middle portion for receiving the key 11 of a screen 12. The screen is of slightly greater width and length than the opening 7, and adapted to overlie the latter,

so that air entering the ventilator must pass therethrough and be screened or ventilated during its passage, the screen being. removable, but adapted for adjustment to theouter box by means of the key 11, which comprises a shank that turns in the screen plate and carries a 1i member 13 which is adapted for projection through the key slot 9, and for turning back of the rib 8 to hold the plate to the box. The ke has a handle por- Cprojected into t e opening in the tion 14L sash, an by which the key may be turned and the screen held when the inner parts are exposed by removal or adjustment of the entire damper frame, as will presently be described. Fitting within the sash opening at the inside of the sash is a box 16 having flanges 1'? turned over the face of the sash and fixed thereto by screws or the like 18.

i, In the base of the box is a longitudinal box, except that they are two in number and.

located at the ends of the opening instead of in a rib at the center. Removably applied to the baseof the box, and covering, said opening, is a plate 22, havin a key 23 at each end corresponding with t e key 11 just describe and adapted for similar use in cooperation withthe slotted base of the box 2 16, so that the plate may be fixed to or re-- moved from the box at will.

It is my intention to provide the ventilator with two screen plates 22, one to have a longitudinal opening in its lower portion so that air passing through the ventilator will be deflected or retarded and the other having a large opening occupying practically the entire area of the plate and adapted to pass a greater amount of air therethrough. l 1

Hingedly mounted within the box, in front of the screen plate, is a damper frame 24:, the hinge carrying the frame preferably comprising curved 'fianges 25 which .are hung on and adapted for revolution over a rod 26 which is carried by the ends of the box and extends across the lower portion thereof: The frame 2% has an up 7 er flange 27 adapted for projection into the ox opening at the'top, and has keys 28 ada ted to turn into slots 29 in the ends of the ox 16 when the frame is closed. The frame 24 has damper openings 30 formed by spaced ribs 31,; and in the central rib is a horizontal slot 32 through which the handle stud 33 of a damper plate 34 is slidabl projected. The plate 34 is held to the rontof the damper frame by the handle stud and rides on the hinge flanges 25 so that it is held closely against the back of the frame and in horizontal alinement. while being free-to travel longitudinally and thereby regulate the area of the openings in the plate.

Presuming the parts to be constructed and assembled as described, and the opening in the window sash to be of proper dimensions, the outside box is projected into the sash opening from theouter side thereof and fixed permanently to the sash, as'illus trated, the curved bottom of the box being projected slightly beyond the outer face of the shaft when the box is in place; The parts of the front box are assembled as shown and the box inserted into the sash opening from the inner side of the window and also fixed permanently to the sash.

When the ventilator is in use, air entering the lower part of the outer box is deflected upwardly by the curved bottom and around the dust stop, topass to-the screened opening in the outer-box throu h which 'it passes into thev chamber formed etwe'eii the outer and innerboxesthe dust stop arresting any Y the damper frame is unlocked from the box "and swung downwardly on its hinge to expose the inside screen. The insidescreen may then be removed by turning the keys '23 to register with the key slots and then lifting the screen out through the opening made by the removal of the damper frame. :The outside screen may then be removed by turning the key llto registration with the key slot, and lifting the screen away from the back box. An open passage is then left through the sash openings and the screens can be brushed or cleaned before they are put back into their boxes.

It is apparent that with a ventilator of I this construction, the outside box is protected so that rain, snow or dust can not enter the inside of the ventilator, and so that water will drain out away from the box and onto the window sill. It is also apparent that not only is the ventilator adapted to prevent the intake of dust, or the like, into a room, but that whatever dust may enter may be easily and quickly remoyed when the ventilator is taken apart, as described.

Having thus described my invention, what I claim as new therein and desire to secure by Letters-Patent, is

1. The combination with a windowsash having an opening therein, of a box mounted in said opening and comprising an outer portion having a lower opening, and a defiectofr curved upwardly and inwardly from the lower edge of said opening, and having an outturned edge forming a dust stop.

' 2'.-The combination with a Window sash having an opening therein, of a box located in said opening and comprising spaced inner and outerportions, the outerportion having an opening at the bottom and the inner portion having an opening at the top, and

a deflector curved upwardly and inwardly from the bottom of the outer opening,- and having an outturned dust stop at the bottom of the inner o ening.

3.-.The com ination with a window sash having an opening therein, of a box located bottom of the outer opening, and having an outturned dust stop at the bottom of the inner opening, and 21. screen removably mounted in the inner opening. i

4. The combination with e Window sash having an opening therein, of a box mounted insaid opening and comprising an outer portion having a lower opening, and an inner portion having an upper opening, a deflector curved upwardly and inwardly 10 from the bottom of the outer opening-end havin an outturned edge rovided with e depen ing lip, forming a ust stop at the bottom of the inner opening, and a 'screen removably mounted in said upper opening.

In testimony whereof I aflix my signature '15 in presence of two Witnesses.

ISIDOR POMERANTZn Witnesses:

ARTHUR Wu GAPS, LETA E. COATS. 

